Reply by fussy

Use a try square on the edge of the jig. Slide the jig forward until the square shows the leading edge of the blade and the center of the pivot point are aligned then clamp it down. The clamping block squares the jig to the table and allows you to slide the jig until you’re lined up. Hope it works. This is not a question too elementary for this forum. This is exactly why it’s here. Most of the time you get good information, and then someone like me comes along blowing smoke and you waste good wood listening to me. Seriously, that’s what it looks like to me. I’m planning to make this jig too, so let me know if I’m right.